{200}{}{If I tie some rope to this I could probably climb down there.}
{201}{}{Some rope would definitely be useful here.}

{300}{}{That should do it.}
{301}{}{I already placed the rope.}
{302}{}{You tie the rope to one of the bars of the vent and drop the rest of the rope down. You hear a thud as it hits
 the bottom.}

{400}{}{You enter one of the EPA's ventilation systems. You can hear various insects scurrying about.}
